<template>
    <div class="app-container">
        <!-- 顶部 Header 区域 -->
        <mt-header fixed title="新手程序员-Vue项目">
			<span slot="left" @click="goBack" v-show="flag">
    			<mt-button icon="back">返回</mt-button>
  			</span>
		</mt-header>


        <!-- 中间的 路由router-view 区域 -->
		<transition>
			<router-view></router-view>
		</transition>

        <!-- 底部 Tabbar 区域 -->
        <nav class="mui-bar mui-bar-tab">
			<router-link class="mui-tab-item-lib" to="/home">
				<span class="mui-icon mui-icon-home"></span>
				<span class="mui-tab-label">首页</span>
			</router-link>
			<router-link class="mui-tab-item-lib" to="/member">
				<span class="mui-icon mui-icon-contact"></span>
				<span class="mui-tab-label">会员</span>
			</router-link>
			<router-link class="mui-tab-item-lib" to="/shopcart">
				<span class="mui-icon mui-icon-extra mui-icon-extra-cart"><span class="mui-badge" id="badge">
					{{ $store.getters.getAllCount }}</span></span>
				<span class="mui-tab-label">购物车</span>
			</router-link>
			<router-link class="mui-tab-item-lib" to="/search">
				<span class="mui-icon mui-icon-search"></span>
				<span class="mui-tab-label">搜索</span>
			</router-link>
		</nav>
    </div>
</template>
<script>
    export default{
		data(){
			return {
				flag:false
			}
		},
		created(){
			this.flag=this.$route.path==='/home'?false:true
		},
		methods:{
			goBack(){
				this.$router.go(-1);
			}
		},
		watch:{
			'$route.path':function(newVal){
				if(newVal==='/home'){
					this.flag=false;
				}else{
					this.flag=true;
				}
			}
		}
	}
</script>
<style lang="scss" scoped>
	.mint-header{
		z-index:99;
	}
    .app-container{
        padding-top:40px;
		padding-bottom:50px;
		overflow-x: hidden;
    }
	.v-enter{
		opacity:0;
		transform:translateX(100%)
	}
	.v-leave-to{
		opacity:0;
		transform: translateX(-100%);
		position: absolute;
	}
	.v-enter-active,
	.v-leave-active{
		transition: all 0.5s ease;
	}
	//改类名，解决tabbar点击无法切换的问题
	.mui-bar-tab .mui-tab-item-lib.mui-active {
    	color: #007aff;
	}
	.mui-bar-tab .mui-tab-item-lib {
    	display: table-cell;
    	overflow: hidden;
    	width: 1%;
    	height: 50px;
    	text-align: center;
    	vertical-align: middle;
    	white-space: nowrap;
    	text-overflow: ellipsis;
    	color: #929292;
	}
	.mui-bar-tab .mui-tab-item-lib .mui-icon {
    	top: 3px;
    	width: 24px;
    	height: 24px;
    	padding-top: 0;
    	padding-bottom: 0;
	}
	.mui-bar-tab .mui-tab-item-lib .mui-icon~.mui-tab-label {
    	font-size: 11px;
    	display: block;
    	overflow: hidden;
    	text-overflow: ellipsis;
	}
</style>